Question classification method and system
A technology of problem classification and problem type, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems that consume a lot of manpower
Inactive Publication Date: 2015-11-11
ZHANGJIAGANG INST OF IND TECH SOOCHOW UNIV
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[0006] The purpose of the present invention is to provide a problem classification method and system to solve the problems that need to consume a lot of manpower in the prior art
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[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0043] see figure 1 , which shows a flow chart of a problem classification method provided by an embodiment of the present invention, which may include the following steps:
[0044] S11: Obtain a first preset amount of first training text and a second preset amount of second training text, the first training text has provided its question type, and the second training text has not provided its question type.
[0045] Wherein, the first preset amount and the s...
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The invention discloses a question classification method and system. The question classification method comprises: first training texts acquiring a first pre-set quantity and second training texts acquiring a second pre-set quantity, wherein the first training texts have provided question types, while the second training texts does not provide question types; determining the question type of each second training text by using the first training texts and the question type of each first training text through a label propagation algorithm; determining the first training texts and the second training texts to be training texts, and carrying out word segmentation processing on the training texts to obtain training word groups corresponding to all the training texts respectively; training a maximum entropy classifier by using the training word group corresponding to each training text and the question type of each training text; and classifying word groups to be detected by using the maximum entropy classifier to obtain the question type of texts to be detected, corresponding to the word groups to be detected. Therefore, the question types of a lot of training texts do not need to be determined, so that a large amount of manpower does not need to be consumed; and the accuracy of the result of classifying the word groups to be detected is higher.
Description
technical field [0001] The present invention relates to the technical field of natural language processing, and more specifically, to a problem classification method and system. Background technique [0002] Automatic question answering technology is a very popular research direction in the field of natural language processing technology. In automatic question answering technology, question classification is one of the most important aspects. [0003] Problem classification is the task of classifying text into those on the topic and those not on the topic, for example, separating texts into computer categories, such as "My computer can't create folders", and non-computer categories, such as "Van Gogh drew Is the yellow house still there?"; etc. [0004] Existing problem classification methods are usually based on statistical models, which are less restrictive to the field and have better scalability. However, the existing problem classification methods usually need to use ...
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Login to View More IPC IPC(8): G06F17/30
CPCG06F16/353
Inventor 李寿山张栋周国栋
Owner ZHANGJIAGANG INST OF IND TECH SOOCHOW UNIV